What Is Technical Debt?

Technical debt is the accumulated cost of taking shortcuts in code. Every time a team chooses a quick, imperfect solution over a correct but slower one, they take on technical debt, an implicit obligation to come back and fix it later. Like financial debt, small amounts are manageable. Let it compound unchecked and it can paralyse a codebase.

Technical debt takes many forms: poorly structured code that is hard to modify, missing tests that make changes risky, outdated dependencies with security vulnerabilities, database schemas that made sense early on but no longer fit the product, and undocumented decisions that only the original developer understood.

Some technical debt is intentional and acceptable, especially in an MVP context, where the goal is to ship fast and learn. Choosing a simpler implementation to hit a launch date is a reasonable trade-off, as long as the team is aware of the debt they are taking on and has a plan to address it. The problem arises when shortcuts are taken unconsciously, or when acknowledged debt is never paid down.

Vibe-coded products, those built by prompting AI without engineering judgment, often accumulate technical debt rapidly. The code works, but it is fragile, hard to modify, and increasingly expensive to build on top of. At Toggle, we build MVPs quickly but without creating the kind of technical debt that makes the next phase of development painful.